TY  - BOOK
AU  - Sven, Behrens.
TI  - Physical environment and its significance for economic development: with special reference to Ethiopia  
U1  - 910.02163 
PY  - 1971///
CY  - Lund
PB  - The Royal University of Lund
KW  - Physical geography
KW  -  Sweden
KW  - Geology
N1  - Includes bibliographical references
ER  -